Separable fastener.



J. A. DORAN.

*SEPARABLE FASTENER.

APPHCATION HL'ED NOV- 6,1911- 1,,288,1 1 L Patented 00$. 29, 1918.

JAMES A. nonamor rnovrnnnon', nnonn rsnann.

f snPARABLn 'rAs'rEnEn."

To all whom it mag concern:

. Be it known that I, JAMES A. DORAN, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a certain new and useful Improvement in Separable Fasteners, of which the following is a full, clear, and exact description.

The object of this invention is to provide a strong, durable and economically produced separable fastener, more particularly de signed for use in connection with ornaments to be attached in a removable way to garments, such as military uniforms, and other articles.

The present invention comprises a twopart male member, one of said parts, namely, the back, being constructed of sheet metal and having a disk portion to receive the other part, namely, a face piece which contains the ornament, design, or insignia, the two parts being united by solder or other means; the said back having an integral stem produced by drawing down the metal of the disk and screwthreading its exterior; and the nut, or female member, which is made of sheet metal having a similarly drawn screw socket to engage the stem; thedisk having pointed projections to engage the garment or other article and hold the device from axial rotation and in the desired position on the article, as I will proceed now to explain and finally claim.

In the accompanying drawings illustrating the invention in the several figures of which like parts are similarly deslgnated, Figure 1 is a top plan view; Fig. 2 is an inverted plan view; Fig. 3 is a side elevation, and Fig. 4 is a vertical section of the back of the male member constructed in accordance with my invention. Fig. 5 is a top plan view; Fig. 6 is an inverted plan view; Fig. 7 is a side elevation, and Fig. 8 is a vertical section of a nut or female member constructed in accordance with my invention. Fig. 9 is a vertical section illustrating the male and female members assembled and with the face plate applied to the back.

The back, Fi gs. 1 to 4, comprises a disk 1 having a screwthreaded stem 2 produced thereon by drawing down its substance, sub stantially as hollow rivets, eyelets and other articles are produced by metal drawing. The rim of the disk or any other suitable portion thereof is provided with the pointed Specification of Letters Patent.

Patented Oct. 29, 1918.

Application filed November 6, 1917. Serial No. 200,587.

projections or prongs 3 to engage the garment or other article so as to hold the device in desired position and prevent it from turning axially. The face or ornament 4, of desiredmaterial and construction, is applied to the disk 1 by soldering or otherwise, substantially as indicated in Fig. 9, in such way as to insure permanency.

Heretofore the back and its screw-stem have usually been made in two pieces and united in some way, but by making them of sheet metal and in one piece a relatively stronger device is produced and at less manufacturing cost and of less weight.

Instead of the heavy, solid nut heretofore commonly used in this type of articles, I make the nut or female member, Figs. 5 to 8, of sheet metal, having a rolled rim 5, a central raised portion 6, and a central tubular socket portion 7 which is drawn down from the raised portion 6 and is internally screwthreaded to receive and engage the screwthreaded stem 2 of the back in order to attach an ornament to a garment or other article, as indicated in Fig. 9. The raised portion 6 is straddled by the prongs 3 and cooperates with the disk portion 1 to clamp the garment while the prongs penetrate the garment thus obtaining a double grip on the garment.

It will be seen that the nut may be made of sheet metal, at less cost than by casting or forging, and of lighter weight, and its strength and durability are substantially equal to such last-mentioned nuts.

The saving in weight of metal effected by my construction is not only a manufacturing economy of moment, but it is also advantageous in reducing the weight of military equipment.

Of course, the sheet metal back may be used in connection with the old style solid nuts or other fasteners, and the sheet metal nut may be used with other constructions of male or face members, but the use together of the sheet metal male and female members results in the maximum gain in economy in first cost and weight.

Variations in details of construction are deemed to be within the scope and principle of the invention as hereinafter claimed.

What I claim is 1. In a separable fastener, a male member comprising an ornament or face-piece, and a back composed of a sheet metal disk to Which the ornament or face-piece is permacomprising an ornament or face piece, and a back composed of a sheet metal disk to Which the ornament or face-piece is perman'ently and rigidly applied, a screwthre'aded stem extending in a direction away from the ornament lor face pi'ece, and prongs projectingmearwardly from" the disk, said back beingi made of sheet metal in one integral piece, combined With a' one-piece sheetmetalfe-v .male'rmembenhaving an axial socket screwthreaded internally to engage the stem.

3. In a separable fastener, a female mem beradapted-to engage a screw portlon of a .malevmember, said female member comprising a rolled rim, a central raised member, and an axlal, tubular, mteriorly screwthreaded socket all in one lntegral plece of sheet-metal, said isocket being drawn down from the raised member.

In testimony whereof IhaVe hereunto set my 'handithi-s 9th "day of October A; D. 1917.

Copies'ofi-this patent' -may be obteinedvior five cents eachg bywaddrssingthv Commissioner of- Patenvts,

Washington n, 0,21. 

